We are seeking an experienced for a highly skilled Senior React Developer to join our team and take the lead in developing high-quality, responsive, and performant front-end screens for Octagon, our enterprise-grade platform. You will collaborate closely with designers, product managers, and back-end developers to build intuitive user interfaces that deliver a seamless user experience.Key Responsibilities:Lead the development of complex React-based user interfaces for Octagon.Translate Figma/mockups/wireframes into responsive and accessible React components.Build reusable components and front-end libraries for future use.Optimize components for maximum performance across devices and browsers.Integrate RESTful and GraphQL APIs with the front-end.Participate in code reviews and mentor junior developers.Work with cross-functional teams (Product, QA, UX/UI, DevOps) to ensure smooth project delivery.Ensure adherence to best practices in React, JavaScript/TypeScript, testing, and version control.Required Qualifications:10 years of of experience with React.js and modern front-end development.Proficient in JavaScript (ES6+) and TypeScript.Experience with state management libraries such as Redux, Zustand, or Context API.Strong understanding of React hooks, lifecycle methods, and performance optimization.Familiarity with CSS-in-JS (e.g., styled-components, Emotion) or modern CSS frameworks (e.g., Tailwind, SASS).Comfortable integrating with APIs (REST, GraphQL).Familiar with modern build tools (Webpack, Vite), version control (Git), and CI/CD pipelines.Experience with responsive design and cross-browser compatibility.